/**
 *
 * Color picker
 * Author: Stefan Petre www.eyecon.ro
 * 
 * Dual licensed under the MIT and GPL licenses
 * 
 */
(function ($) {
    var ColorPicker = function () {
        var 
			ids = {},
			inAction,
			charMin = 65,
			visible,
			tpl = '<div class="colorpicker"><div class="colorpicker_color"><div><div></div></div></div><div class="colorpicker_hue"><div></div></div><div class="colorpicker_new_color"></div><div class="colorpicker_current_color"></div><div class="colorpicker_hex"><input type="text" maxlength="6" size="6" /></div><div class="colorpicker_rgb_r colorpicker_field"><input type="text" maxlength="3" size="3" /><span></span></div><div class="colorpicker_rgb_g colorpicker_field"><input type="text" maxlength="3" size="3" /><span></span></div><div class="colorpicker_rgb_b colorpicker_field"><input type="text" maxlength="3" size="3" /><span></span></div><div class="colorpicker_hsb_h colorpicker_field"><input type="text" maxlength="3" size="3" /><span></span></div><div class="colorpicker_hsb_s colorpicker_field"><input type="text" maxlength="3" size="3" /><span></span></div><div class="colorpicker_hsb_b colorpicker_field"><input type="text" maxlength="3" size="3" /><span></span></div><div class="colorpicker_submit"></div></div>',
			defaults = {
			    eventName: 'click',
			    onShow: function () { },
			    onBeforeShow: function () { },
			    onHide: function () { },
			    onChange: function () { },
			    onSubmit: function () { },
			    color: 'ff0000',
			    livePreview: true,
			    flat: false
			},
			fillRGBFields = function (hsb, cal) {
			    var rgb = HSBToRGB(hsb);
			    $(cal).data('colorpicker').fields
					.eq(1).val(rgb.r).end()
					.eq(2).val(rgb.g).end()
					.eq(3).val(rgb.b).end();
			},
			fillHSBFields = function (hsb, cal) {
			    $(cal).data('colorpicker').fields
					.eq(4).val(hsb.h).end()
					.eq(5).val(hsb.s).end()
					.eq(6).val(hsb.b).end();
			},
			fillHexFields = function (hsb, cal) {
			    $(cal).data('colorpicker').fields
					.eq(0).val(HSBToHex(hsb)).end();
			},
			setSelector = function (hsb, cal) {
			    $(cal).data('colorpicker').selector.css('backgroundColor', '#' + HSBToHex({ h: hsb.h, s: 100, b: 100 }));
			    $(cal).data('colorpicker').selectorIndic.css({
			        left: parseInt(150 * hsb.s / 100, 10),
			        top: parseInt(150 * (100 - hsb.b) / 100, 10)
			    });
			},
			setHue = function (hsb, cal) {
			    $(cal).data('colorpicker').hue.css('top', parseInt(150 - 150 * hsb.h / 360, 10));
			},
			setCurrentColor = function (hsb, cal) {
			    $(cal).data('colorpicker').currentColor.css('backgroundColor', '#' + HSBToHex(hsb));
			},
			setNewColor = function (hsb, cal) {
			    $(cal).data('colorpicker').newColor.css('backgroundColor', '#' + HSBToHex(hsb));
			},
			keyDown = function (ev) {
			    var pressedKey = ev.charCode || ev.keyCode || -1;
			    if ((pressedKey > charMin && pressedKey <= 90) || pressedKey == 32) {
			        return false;
			    }
			    var cal = $(this).parent().parent();
			    if (cal.data('colorpicker').livePreview === true) {
			        change.apply(this);
			    }
			},
			change = function (ev) {
			    var cal = $(this).parent().parent(), col;
			    if (this.parentNode.className.indexOf('_hex') > 0) {
			        cal.data('colorpicker').color = col = HexToHSB(fixHex(this.value));
			    } else if (this.parentNode.className.indexOf('_hsb') > 0) {
			        cal.data('colorpicker').color = col = fixHSB({
			            h: parseInt(cal.data('colorpicker').fields.eq(4).val(), 10),
			            s: parseInt(cal.data('colorpicker').fields.eq(5).val(), 10),
			            b: parseInt(cal.data('colorpicker').fields.eq(6).val(), 10)
			        });
			    } else {
			        cal.data('colorpicker').color = col = RGBToHSB(fixRGB({
			            r: parseInt(cal.data('colorpicker').fields.eq(1).val(), 10),
			            g: parseInt(cal.data('colorpicker').fields.eq(2).val(), 10),
			            b: parseInt(cal.data('colorpicker').fields.eq(3).val(), 10)
			        }));
			    }
			    if (ev) {
			        fillRGBFields(col, cal.get(0));
			        fillHexFields(col, cal.get(0));
			        fillHSBFields(col, cal.get(0));
			    }
			    setSelector(col, cal.get(0));
			    setHue(col, cal.get(0));
			    setNewColor(col, cal.get(0));
			    cal.data('colorpicker').onChange.apply(cal, [col, HSBToHex(col), HSBToRGB(col)]);
			},
			blur = function (ev) {
			    var cal = $(this).parent().parent();
			    cal.data('colorpicker').fields.parent().removeClass('colorpicker_focus');
			},
			focus = function () {
			    charMin = this.parentNode.className.indexOf('_hex') > 0 ? 70 : 65;
			    $(this).parent().parent().data('colorpicker').fields.parent().removeClass('colorpicker_focus');
			    $(this).parent().addClass('colorpicker_focus');
			},
			downIncrement = function (ev) {
			    var field = $(this).parent().find('input').focus();
			    var current = {
			        el: $(this).parent().addClass('colorpicker_slider'),
			        max: this.parentNode.className.indexOf('_hsb_h') > 0 ? 360 : (this.parentNode.className.indexOf('_hsb') > 0 ? 100 : 255),
			        y: ev.pageY,
			        field: field,
			        val: parseInt(field.val(), 10),
			        preview: $(this).parent().parent().data('colorpicker').livePreview
			    };
			    $(document).bind('mouseup', current, upIncrement);
			    $(document).bind('mousemove', current, moveIncrement);
			},
			moveIncrement = function (ev) {
			    ev.data.field.val(Math.max(0, Math.min(ev.data.max, parseInt(ev.data.val + ev.pageY - ev.data.y, 10))));
			    if (ev.data.preview) {
			        change.apply(ev.data.field.get(0), [true]);
			    }
			    return false;
			},
			upIncrement = function (ev) {
			    change.apply(ev.data.field.get(0), [true]);
			    ev.data.el.removeClass('colorpicker_slider').find('input').focus();
			    $(document).unbind('mouseup', upIncrement);
			    $(document).unbind('mousemove', moveIncrement);
			    return false;
			},
			downHue = function (ev) {
			    var current = {
			        cal: $(this).parent(),
			        y: $(this).offset().top
			    };
			    current.preview = current.cal.data('colorpicker').livePreview;
			    $(document).bind('mouseup', current, upHue);
			    $(document).bind('mousemove', current, moveHue);
			},
			moveHue = function (ev) {
			    change.apply(
					ev.data.cal.data('colorpicker')
						.fields
						.eq(4)
						.val(parseInt(360 * (150 - Math.max(0, Math.min(150, (ev.pageY - ev.data.y)))) / 150, 10))
						.get(0),
					[ev.data.preview]
				);
			    return false;
			},
			upHue = function (ev) {
			    fillRGBFields(ev.data.cal.data('colorpicker').color, ev.data.cal.get(0));
			    fillHexFields(ev.data.cal.data('colorpicker').color, ev.data.cal.get(0));
			    $(document).unbind('mouseup', upHue);
			    $(document).unbind('mousemove', moveHue);
			    return false;
			},
			downSelector = function (ev) {
			    var current = {
			        cal: $(this).parent(),
			        pos: $(this).offset()
			    };
			    current.preview = current.cal.data('colorpicker').livePreview;
			    $(document).bind('mouseup', current, upSelector);
			    $(document).bind('mousemove', current, moveSelector);
			},
			moveSelector = function (ev) {
			    change.apply(
					ev.data.cal.data('colorpicker')
						.fields
						.eq(6)
						.val(parseInt(100 * (150 - Math.max(0, Math.min(150, (ev.pageY - ev.data.pos.top)))) / 150, 10))
						.end()
						.eq(5)
						.val(parseInt(100 * (Math.max(0, Math.min(150, (ev.pageX - ev.data.pos.left)))) / 150, 10))
						.get(0),
					[ev.data.preview]
				);
			    return false;
			},
			upSelector = function (ev) {
			    fillRGBFields(ev.data.cal.data('colorpicker').color, ev.data.cal.get(0));
			    fillHexFields(ev.data.cal.data('colorpicker').color, ev.data.cal.get(0));
			    $(document).unbind('mouseup', upSelector);
			    $(document).unbind('mousemove', moveSelector);
			    return false;
			},
			enterSubmit = function (ev) {
			    $(this).addClass('colorpicker_focus');
			},
			leaveSubmit = function (ev) {
			    $(this).removeClass('colorpicker_focus');
			},
			clickSubmit = function (ev) {
			    var cal = $(this).parent();
			    var col = cal.data('colorpicker').color;
			    cal.data('colorpicker').origColor = col;
			    setCurrentColor(col, cal.get(0));
			    cal.data('colorpicker').onSubmit(col, HSBToHex(col), HSBToRGB(col), cal.data('colorpicker').el);
			},
			show = function (ev) {
			    var cal = $('#' + $(this).data('colorpickerId'));
			    cal.data('colorpicker').onBeforeShow.apply(this, [cal.get(0)]);
			    var pos = $(this).offset();
			    var viewPort = getViewport();
			    var top = pos.top + this.offsetHeight;
			    var left = pos.left;
			    if (top + 176 > viewPort.t + viewPort.h) {
			        top -= this.offsetHeight + 176;
			    }
			    if (left + 356 > viewPort.l + viewPort.w) {
			        left -= 356;
			    }
			    cal.css({ left: left + 'px', top: top + 'px' });
			    if (cal.data('colorpicker').onShow.apply(this, [cal.get(0)]) != false) {
			        cal.show();
			    }
			    $(document).bind('mousedown', { cal: cal }, hide);
			    return false;
			},
			hide = function (ev) {
			    if (!isChildOf(ev.data.cal.get(0), ev.target, ev.data.cal.get(0))) {
			        if (ev.data.cal.data('colorpicker').onHide.apply(this, [ev.data.cal.get(0)]) != false) {
			            ev.data.cal.hide();
			        }
			        $(document).unbind('mousedown', hide);
			    }
			},
			isChildOf = function (parentEl, el, container) {
			    if (parentEl == el) {
			        return true;
			    }
			    if (parentEl.contains) {
			        return parentEl.contains(el);
			    }
			    if (parentEl.compareDocumentPosition) {
			        return !!(parentEl.compareDocumentPosition(el) & 16);
			    }
			    var prEl = el.parentNode;
			    while (prEl && prEl != container) {
			        if (prEl == parentEl)
			            return true;
			        prEl = prEl.parentNode;
			    }
			    return false;
			},
			getViewport = function () {
			    var m = document.compatMode == 'CSS1Compat';
			    return {
			        l: window.pageXOffset || (m ? document.documentElement.scrollLeft : document.body.scrollLeft),
			        t: window.pageYOffset || (m ? document.documentElement.scrollTop : document.body.scrollTop),
			        w: window.innerWidth || (m ? document.documentElement.clientWidth : document.body.clientWidth),
			        h: window.innerHeight || (m ? document.documentElement.clientHeight : document.body.clientHeight)
			    };
			},
			fixHSB = function (hsb) {
			    return {
			        h: Math.min(360, Math.max(0, hsb.h)),
			        s: Math.min(100, Math.max(0, hsb.s)),
			        b: Math.min(100, Math.max(0, hsb.b))
			    };
			},
			fixRGB = function (rgb) {
			    return {
			        r: Math.min(255, Math.max(0, rgb.r)),
			        g: Math.min(255, Math.max(0, rgb.g)),
			        b: Math.min(255, Math.max(0, rgb.b))
			    };
			},
			fixHex = function (hex) {
			    var len = 6 - hex.length;
			    if (len > 0) {
			        var o = [];
			        for (var i = 0; i < len; i++) {
			            o.push('0');
			        }
			        o.push(hex);
			        hex = o.join('');
			    }
			    return hex;
			},
			HexToRGB = function (hex) {
			    var hex = parseInt(((hex.indexOf('#') > -1) ? hex.substring(1) : hex), 16);
			    return { r: hex >> 16, g: (hex & 0x00FF00) >> 8, b: (hex & 0x0000FF) };
			},
			HexToHSB = function (hex) {
			    return RGBToHSB(HexToRGB(hex));
			},
			RGBToHSB = function (rgb) {
			    var hsb = {
			        h: 0,
			        s: 0,
			        b: 0
			    };
			    var min = Math.min(rgb.r, rgb.g, rgb.b);
			    var max = Math.max(rgb.r, rgb.g, rgb.b);
			    var delta = max - min;
			    hsb.b = max;
			    if (max != 0) {

			    }
			    hsb.s = max != 0 ? 255 * delta / max : 0;
			    if (hsb.s != 0) {
			        if (rgb.r == max) {
			            hsb.h = (rgb.g - rgb.b) / delta;
			        } else if (rgb.g == max) {
			            hsb.h = 2 + (rgb.b - rgb.r) / delta;
			        } else {
			            hsb.h = 4 + (rgb.r - rgb.g) / delta;
			        }
			    } else {
			        hsb.h = -1;
			    }
			    hsb.h *= 60;
			    if (hsb.h < 0) {
			        hsb.h += 360;
			    }
			    hsb.s *= 100 / 255;
			    hsb.b *= 100 / 255;
			    return hsb;
			},
			HSBToRGB = function (hsb) {
			    var rgb = {};
			    var h = Math.round(hsb.h);
			    var s = Math.round(hsb.s * 255 / 100);
			    var v = Math.round(hsb.b * 255 / 100);
			    if (s == 0) {
			        rgb.r = rgb.g = rgb.b = v;
			    } else {
			        var t1 = v;
			        var t2 = (255 - s) * v / 255;
			        var t3 = (t1 - t2) * (h % 60) / 60;
			        if (h == 360) h = 0;
			        if (h < 60) { rgb.r = t1; rgb.b = t2; rgb.g = t2 + t3 }
			        else if (h < 120) { rgb.g = t1; rgb.b = t2; rgb.r = t1 - t3 }
			        else if (h < 180) { rgb.g = t1; rgb.r = t2; rgb.b = t2 + t3 }
			        else if (h < 240) { rgb.b = t1; rgb.r = t2; rgb.g = t1 - t3 }
			        else if (h < 300) { rgb.b = t1; rgb.g = t2; rgb.r = t2 + t3 }
			        else if (h < 360) { rgb.r = t1; rgb.g = t2; rgb.b = t1 - t3 }
			        else { rgb.r = 0; rgb.g = 0; rgb.b = 0 }
			    }
			    return { r: Math.round(rgb.r), g: Math.round(rgb.g), b: Math.round(rgb.b) };
			},
			RGBToHex = function (rgb) {
			    var hex = [
					rgb.r.toString(16),
					rgb.g.toString(16),
					rgb.b.toString(16)
				];
			    $.each(hex, function (nr, val) {
			        if (val.length == 1) {
			            hex[nr] = '0' + val;
			        }
			    });
			    return hex.join('');
			},
			HSBToHex = function (hsb) {
			    return RGBToHex(HSBToRGB(hsb));
			},
			restoreOriginal = function () {
			    var cal = $(this).parent();
			    var col = cal.data('colorpicker').origColor;
			    cal.data('colorpicker').color = col;
			    fillRGBFields(col, cal.get(0));
			    fillHexFields(col, cal.get(0));
			    fillHSBFields(col, cal.get(0));
			    setSelector(col, cal.get(0));
			    setHue(col, cal.get(0));
			    setNewColor(col, cal.get(0));
			};
        return {
            init: function (opt) {
                opt = $.extend({}, defaults, opt || {});
                if (typeof opt.color == 'string') {
                    opt.color = HexToHSB(opt.color);
                } else if (opt.color.r != undefined && opt.color.g != undefined && opt.color.b != undefined) {
                    opt.color = RGBToHSB(opt.color);
                } else if (opt.color.h != undefined && opt.color.s != undefined && opt.color.b != undefined) {
                    opt.color = fixHSB(opt.color);
                } else {
                    return this;
                }
                return this.each(function () {
                    if (!$(this).data('colorpickerId')) {
                        var options = $.extend({}, opt);
                        options.origColor = opt.color;
                        var id = 'collorpicker_' + parseInt(Math.random() * 1000);
                        $(this).data('colorpickerId', id);
                        var cal = $(tpl).attr('id', id);
                        if (options.flat) {
                            cal.appendTo(this).show();
                        } else {
                            cal.appendTo(document.body);
                        }
                        options.fields = cal
											.find('input')
												.bind('keyup', keyDown)
												.bind('change', change)
												.bind('blur', blur)
												.bind('focus', focus);
                        cal
							.find('span').bind('mousedown', downIncrement).end()
							.find('>div.colorpicker_current_color').bind('click', restoreOriginal);
                        options.selector = cal.find('div.colorpicker_color').bind('mousedown', downSelector);
                        options.selectorIndic = options.selector.find('div div');
                        options.el = this;
                        options.hue = cal.find('div.colorpicker_hue div');
                        cal.find('div.colorpicker_hue').bind('mousedown', downHue);
                        options.newColor = cal.find('div.colorpicker_new_color');
                        options.currentColor = cal.find('div.colorpicker_current_color');
                        cal.data('colorpicker', options);
                        cal.find('div.colorpicker_submit')
							.bind('mouseenter', enterSubmit)
							.bind('mouseleave', leaveSubmit)
							.bind('click', clickSubmit);
                        fillRGBFields(options.color, cal.get(0));
                        fillHSBFields(options.color, cal.get(0));
                        fillHexFields(options.color, cal.get(0));
                        setHue(options.color, cal.get(0));
                        setSelector(options.color, cal.get(0));
                        setCurrentColor(options.color, cal.get(0));
                        setNewColor(options.color, cal.get(0));
                        if (options.flat) {
                            cal.css({
                                position: 'relative',
                                display: 'block'
                            });
                        } else {
                            $(this).bind(options.eventName, show);
                        }
                    }
                });
            },
            showPicker: function () {
                return this.each(function () {
                    if ($(this).data('colorpickerId')) {
                        show.apply(this);
                    }
                });
            },
            hidePicker: function () {
                return this.each(function () {
                    if ($(this).data('colorpickerId')) {
                        $('#' + $(this).data('colorpickerId')).hide();
                    }
                });
            },
            setColor: function (col) {
                if (typeof col == 'string') {
                    col = HexToHSB(col);
                } else if (col.r != undefined && col.g != undefined && col.b != undefined) {
                    col = RGBToHSB(col);
                } else if (col.h != undefined && col.s != undefined && col.b != undefined) {
                    col = fixHSB(col);
                } else {
                    return this;
                }
                return this.each(function () {
                    if ($(this).data('colorpickerId')) {
                        var cal = $('#' + $(this).data('colorpickerId'));
                        cal.data('colorpicker').color = col;
                        cal.data('colorpicker').origColor = col;
                        fillRGBFields(col, cal.get(0));
                        fillHSBFields(col, cal.get(0));
                        fillHexFields(col, cal.get(0));
                        setHue(col, cal.get(0));
                        setSelector(col, cal.get(0));
                        setCurrentColor(col, cal.get(0));
                        setNewColor(col, cal.get(0));
                    }
                });
            }
        };
    } ();
    $.fn.extend({
        ColorPicker: ColorPicker.init,
        ColorPickerHide: ColorPicker.hidePicker,
        ColorPickerShow: ColorPicker.showPicker,
        ColorPickerSetColor: ColorPicker.setColor
    });
})(jQuery);